We visited North Devon the first week of the summer hols and it didn't seem as busy as this. The roads, inc the motorways all the down (from Wales) were nowhere near as busy as they usually are in May half term, never mind peak summer, nor were the local roads.
We were staying in a static on a well spaced and controlled caravan/camping park, which seemed busy but not full. And we supported several local businesses as the site had arranged them to come to the site on a rota to provide food if you wanted to purchase it. We ate out once in a quiet pub where we booked a table and enjoyed an open air wildlife park that was well organised too.
The only time I didn't feel as safe was when we walked the coastal path into the local village, as there was very little to no distancing of people on the narrow lanes. So we made it a short trip, kept to the areas where you could keep your distance, popped only into 2 of the larger shops where distancing was possible easily, and then retreated to the more open spaces again.
It felt AMAZING to get away. The owners of the food vans said they welcomed the tourists as it was their business, but I can agree that I'd feel very unhappy if I was a resident, seeing the lack of rule following from some.