I suppose it was a gesture of good will to the co-operative parents by not pressing charges, Leo. Although tbh, especially if they had been any older, I might have anyway. They're old enough to know right and wrong and that is absolutely shocking behaviour. I'm glad you got your stuff back, Thal, it was a stroke of luck that it snowed and they were that stupid.
We had a similar experience this summer while in France. On our way back, we stopped at the War Museum the day before our ferry home. It was a Saturday afternoon, we were there for a decent amount of hours and it was a great and interesting time. Came out that evening and my stepbros had ran ahead like they do - ran back, informed us that the bikes had been nicked off the bike rack, which we had two locks on. Turned out other cars had been robbed of bikes and roofboxes, and people with caravans/caravettes had even had entire wheels taken off them. An organised group had come to the touristy place (obv people from all over the world visit in the thousands, esp on a weekend) and just done a clean sweep of the car park. We didn't get our bikes back but we did get enough from insurance to get decent replacements quite quickly, so it worked out, but as I'm sure Thal can attest to that being victim to a robbery of any kind is really upsetting and shakes your feelings of security.