待たずに清算できた。 I was able to pay without waiting.

　買い物客が多く店内は混雑していました。

バイクをとめるのも大変でした。

そのぐらいひどい混雑でした。

レジにキャッシャーが入っていたので待たずに精算できました。

年末だけじゃなくふだんもレジはフル稼働させてね。

 There were many shoppers, and the store was packed.
It was so crowded that it was difficult to even find a place to park my motorcycle.
It was that crowded.
There were many cashiers at the registers, so I was able to pay without waiting.
Please keep the registers running at full capacity, not just at the end of the year, but all the time.