Yes, this is something I've known would take place for years. Fundamentally, low-density suburban living just can't work long term because of the huge amount of infrastructure required per capita compared to denser living. A road costs the same per mile to build whether in the middle of nowhere or the center of NYC. Well, actually that's not completely true but for our purposes here the approximation is close enough. Ditto for electric lines, gas lines, sewers, etc. However, when that mile of road services 2% or 8% of the population it might in a larger city, then it suddenly doesn't become cost effective. We've already seen the results of trying to make it work-ever increasing real estate taxes, plus a need to government to fund the initial building of infrastructure.
We've hit a crossroads at this point in time. Much of the infrastructure built at government expense in the 1950s and 1960s to jumpstart suburbia is now falling apart. Government can't afford to build it over, residents in these areas cannot afford the taxes necessary to keep it in good repair. Note that this is independent of what fuel prices are doing. Higher gas prices will accelerate the trend, but it would have happened eventually even with $1 per gallon gas. There was just no way, short of perhaps robots maintaining infrastructure, or slave labor doing the same, that a suburban lifestyle dependent upon mechanized transportation could be self-sustaining.
Note that this new type of low-density living is quite different from old rural America, which may well have been even less dense. The need for transport and roads was far less. A dirt road to go into town once a month was more than sufficient. People worked and lived on their farms, not traveled 50 miles a day to work, plus shopped on weekends. The railroad and interurbans were sufficient for the very occasional trips farther than the local town. Electricity was often not needed at all, or if it was, in far smaller amounts than demanded by a typical suburban household. In short, the lifestyle meant that a very basic, low cost per capita infrastructure sufficed. Those who wanted all the modern amenities moved to cities where these things were cost effective to provide.
I could go on but I'll stop for now. Suffice it to say that abandoning a part of the economy into which trillions were invested is going to have very dire repercussions. However, it will cost even more long term to continue a lifestyle which can't be than to abandon it. It will hurt the American psyche even more since few alive today don't remember a time when the proverbial American dream was the house in suburbia, the car, dog, and 2.1 children. The new American dream may well be a modest house on 1/10 or 1/15 of an acre in an area convenient to a subway, with plenty of shopping a short walk away.