My rig also has covered parking, right next to the garage with 30 amp service, but I don't keep it plugged in. In fact, I use a disconnect switch to isolate the battery and a very small solar panel to keep the battery up to charge. In the Texas heat, even when covered, the RV gets unnecessarily hot inside due to the converter running, so the converter fan also has to cycle on and off repeatedly. What happens if the fan fails?? Why waste electricity and run the risk of fire from the converter or the frig?? The microwave will also be powered up. During cooler months I may keep the RV plugged into shore power more often.
As I stated in another thread recently, the MH down the street caught fire Christmas, '08 due to a frigerator fire even though their particular model was not part of the Dometic recall. Owners were upside-down on the RV loan and the insurance payout didn't cover what they owed. Took almost a year to get everything resolved and with the insurance money they could not afford another MH, so downsized (price wise) to a fiver.
In your case, if any of the adjacent RVs catch fire, you will probably loose your rig as well, so make sure you have good insurance and plug it in if you feel the need.
Texas Baptist Men-Retiree Builders member since '01
13 Silverado 3500HD D/A, 2wd CCSB srw, custom RKI bed
11 Cruiser CF32MK